Thread deflecting element for a draw-texturing machine

Abstract

The deflecting element is positioned adajcent to a main heater in order to deflect the thread for two passes in the heater. The deflecting element includes a cylindrical surface which is disposed at an angle to the axis of rotation of the element as well as pair of flanges which define the cylindrical surface. A false twist device is located downstream of the heater to impart a false twist in the thread. The false twist is able to propagate through the thread from the false twist device to the heater and deflecting element back to the supply rolls.

What is claimed is: 
     
       1. In a draw-texturing machine, the combination comprising a first pair of rolls for supplying a continuous thread therebetween;   a main heater for heating a supplied thread;   a false twist device downstream of said heater relative to the path of the thread for imparting a false twist in the thread;   a second pair of rolls downstream of said false twist device relative to the path of the thread for drawing the thread relative to said first pair of rolls; and   a deflecting means adjacent said heater for deflecting the thread to pass said heater in two passes, said means including a cantilevered rotatably mounted shaft and a deflecting element secured to said shaft for rotation therewith, said element including a cylindrical surface disposed about a first axis;   a pair of flanges having said cylindrical surface disposed therebetween, said flanges being of larger diameter than said surface; and   a bore extending through said element on a second axis angularly disposed to said first axis at an angle of from 5 degrees to 20 degrees.   
     
     
       2. The combination as set forth in claim 1 wherein said shaft is rotatable about said second axis. 
     
     
       3. In combination, a supply means for supplying a continuous thread;   a device downstream of said supply means relative to the path of the thread for imparting a twist in the supplied thread; and   a thread deflecting element disposed between said supply means and said device for deflecting the thread thereover, said element including a guide surface for contact with the thread disposed about a first axis, and means mounting said element for rotation about a second axis passing through said element and angularly disposed to said first axis at an angle of from 5 degrees to 20 degrees to permit transmission of a twist in the thread from said device to said supply means.   
     
     
       4. The combination as set forth in claim 3 wherein said element is mounted for free rotation about said second axis in response to thread movement. 
     
     
       5. The combination as set forth in claim 3 wherein said guide surface is cylindrical. 
     
     
       6. The combination as set forth in claim 5 wherein said element includes a pair of flanges having said cylindrical surface disposed therebetween, said flanges being of larger diameter than said surface. 
     
     
       7. The combination as set forth in claim 3 wherein said thread deflecting element is disposed to permit looping of the thread through substantially 180 degrees around said element. 
     
     
       8. The combination as set forth in claim 3 which further comprises a heater for heating the thread upstream of said device and wherein said element is located at one end of said heater to deflect the thread to pass said heater in two passes. 
     
     
       9. The combination as set forth in claim 3 wherein said supply means is a pair of rolls arranged so that twist imparted by said device is transmitted back to the rolls. 
     
     
       10. The combination as set forth in claim 3 wherein said device is a false twist device for imparting a false twist in the supplied thread. 
     
     
       11. The combination as set forth in claim 3 wherein said mounting means comprises a shaft located in a bore in said element and said second axis is the axis of said shaft and said bore. 
     
     
       12. The combination as set forth in claim 11 wherein said element is fixed to said shaft for rotation therewith and which further comprises a support journalling said shaft therein.